15 Unexpected Twists Your Body Takes With Diuretics
9. Changes In Blood Sugar Levels

Some diuretics—especially thiazides—can cause mild increases in blood glucose levels. This is of particular concern in patients with diabetes or those at risk of developing it. Doctors often monitor blood sugar more closely in patients who are starting a diuretic or adjusting their dose. In most cases, lifestyle changes or medications can stabilize glucose fluctuations. Patients should report any new symptoms such as increased thirst, frequent urination, or fatigue, which may indicate elevated blood sugar.